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| 1 /* |
| 2 * Copyright (C) 2014 Google Inc. All rights reserved. |
| 3 * |
| 4 * Redistribution and use in source and binary forms, with or without |
| 5 * modification, are permitted provided that the following conditions are |
| 6 * met: |
| 7 * |
| 8 * * Redistributions of source code must retain the above copyright |
| 9 * notice, this list of conditions and the following disclaimer. |
| 10 * * Redistributions in binary form must reproduce the above |
| 11 * copyright notice, this list of conditions and the following disclaimer |
| 12 * in the documentation and/or other materials provided with the |
| 13 * distribution. |
| 14 * * Neither the name of Google Inc. nor the names of its |
| 15 * contributors may be used to endorse or promote products derived from |
| 16 * this software without specific prior written permission. |
| 17 * |
| 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 29 */ |
| 30 |
| 31 #ifndef WebCryptoKeyAlgorithmParams_h |
| 32 #define WebCryptoKeyAlgorithmParams_h |
| 33 |
| 34 #include "WebCommon.h" |
| 35 #include "WebCryptoAlgorithm.h" |
| 36 #include "WebVector.h" |
| 37 |
| 38 namespace blink { |
| 39 |
| 40 enum WebCryptoKeyAlgorithmParamsType { |
| 41 WebCryptoKeyAlgorithmParamsTypeNone, |
| 42 WebCryptoKeyAlgorithmParamsTypeHmac, |
| 43 WebCryptoKeyAlgorithmParamsTypeAes, |
| 44 WebCryptoKeyAlgorithmParamsTypeRsa, |
| 45 WebCryptoKeyAlgorithmParamsTypeRsaHashed |
| 46 }; |
| 47 |
| 48 class WebCryptoKeyAlgorithmParams { |
| 49 public: |
| 50 virtual ~WebCryptoKeyAlgorithmParams() { } |
| 51 virtual WebCryptoKeyAlgorithmParamsType type() const |
| 52 { |
| 53 return WebCryptoKeyAlgorithmParamsTypeNone; |
| 54 } |
| 55 }; |
| 56 |
| 57 class WebCryptoAesKeyAlgorithmParams : public WebCryptoKeyAlgorithmParams { |
| 58 public: |
| 59 explicit WebCryptoAesKeyAlgorithmParams(unsigned short lengthBits) |
| 60 : m_lengthBits(lengthBits) |
| 61 { |
| 62 } |
| 63 |
| 64 unsigned short lengthBits() const |
| 65 { |
| 66 return m_lengthBits; |
| 67 } |
| 68 |
| 69 virtual WebCryptoKeyAlgorithmParamsType type() const |
| 70 { |
| 71 return WebCryptoKeyAlgorithmParamsTypeAes; |
| 72 } |
| 73 |
| 74 private: |
| 75 unsigned short m_lengthBits; |
| 76 }; |
| 77 |
| 78 class WebCryptoHmacKeyAlgorithmParams : public WebCryptoKeyAlgorithmParams { |
| 79 public: |
| 80 explicit WebCryptoHmacKeyAlgorithmParams(const WebCryptoAlgorithm& hash) |
| 81 : m_hash(hash) |
| 82 { |
| 83 } |
| 84 |
| 85 const WebCryptoAlgorithm& hash() const |
| 86 { |
| 87 return m_hash; |
| 88 } |
| 89 |
| 90 virtual WebCryptoKeyAlgorithmParamsType type() const |
| 91 { |
| 92 return WebCryptoKeyAlgorithmParamsTypeHmac; |
| 93 } |
| 94 |
| 95 private: |
| 96 WebCryptoAlgorithm m_hash; |
| 97 }; |
| 98 |
| 99 class WebCryptoRsaKeyAlgorithmParams : public WebCryptoKeyAlgorithmParams { |
| 100 public: |
| 101 WebCryptoRsaKeyAlgorithmParams(unsigned modulusLengthBits, const unsigned ch
ar* publicExponent, unsigned publicExponentSize) |
| 102 : m_modulusLengthBits(modulusLengthBits) |
| 103 , m_publicExponent(publicExponent, publicExponentSize) |
| 104 { |
| 105 } |
| 106 |
| 107 unsigned modulusLengthBits() const |
| 108 { |
| 109 return m_modulusLengthBits; |
| 110 } |
| 111 |
| 112 const WebVector<unsigned char>& publicExponent() const |
| 113 { |
| 114 return m_publicExponent; |
| 115 } |
| 116 |
| 117 virtual WebCryptoKeyAlgorithmParamsType type() const |
| 118 { |
| 119 return WebCryptoKeyAlgorithmParamsTypeRsa; |
| 120 } |
| 121 |
| 122 private: |
| 123 unsigned m_modulusLengthBits; |
| 124 WebVector<unsigned char> m_publicExponent; |
| 125 }; |
| 126 |
| 127 class WebCryptoRsaHashedKeyAlgorithmParams : public WebCryptoRsaKeyAlgorithmPara
ms { |
| 128 public: |
| 129 WebCryptoRsaHashedKeyAlgorithmParams(unsigned modulusLengthBits, const unsig
ned char* publicExponent, unsigned publicExponentSize, const WebCryptoAlgorithm&
hash) |
| 130 : WebCryptoRsaKeyAlgorithmParams(modulusLengthBits, publicExponent, publ
icExponentSize) |
| 131 , m_hash(hash) |
| 132 { |
| 133 } |
| 134 |
| 135 const WebCryptoAlgorithm& hash() const |
| 136 { |
| 137 return m_hash; |
| 138 } |
| 139 |
| 140 virtual WebCryptoKeyAlgorithmParamsType type() const |
| 141 { |
| 142 return WebCryptoKeyAlgorithmParamsTypeRsaHashed; |
| 143 } |
| 144 |
| 145 private: |
| 146 WebCryptoAlgorithm m_hash; |
| 147 }; |
| 148 |
| 149 } // namespace blink |
| 150 |
| 151 #endif |
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